Mesh bias and shear band inclination in standard and non-standard continua
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DOI: 10.1007/s00419-019-01593-2
Abstract: A severe, spurious dependence of numerical simulations on the mesh size and orientation can be observed in elasto-plastic models with a non-associated flow rule. This is due to the loss of ellipticity and may also… read more here.
Keywords: band inclination; bias shear; shear band; band ... See more keywords
Explicit and implicit methods for shear band modeling at high strain rates
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DOI: 10.1007/s00466-018-1612-7
Abstract: High strain rate loading of metals typically leads to material instabilities known as shear bands. These are narrow bands of intense plastic deformation that weaken the load bearing capacity of the material and serve as… read more here.
Keywords: shear band; implicit methods; high strain; methods shear ... See more keywords
Shear band analysis of granular materials considering effects of particle shape
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DOI: 10.1007/s00707-020-02771-y
Abstract: Biaxial simulation tests with flexible membrane boundaries and Cosserat theory are used to investigate the effect of the particle shape on the properties of a shear band of granular materials. Three kinds of special particle… read more here.
Keywords: shear band; granular materials; analysis; particle ... See more keywords
Comparative investigation of shear-band evolution using discrete and continuum-based particle methods
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DOI: 10.1007/s11440-021-01150-8
Abstract: Both discrete and continuous computational methods are commonly used for model-based simulation of failure evolution. Molecular dynamics (MD) and the finite element method (FEM) are representative discrete particle and continuous methods, respectively. The Material Point… read more here.
Keywords: continuum based; band evolution; shear band; based particle ... See more keywords
Crack Tip Flipping under Mode I Tearing: Investigated by X-Ray Tomography
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Solids and Structures"
DOI: 10.1016/j.ijsolstr.2017.04.014
Abstract: Abstract The fracture surface morphology that results from mode I tearing of ductile plate metals depends heavily on both the elastic-plastic material properties and the microstructure. Severe tunneling of the advancing crack tip (resulting in… read more here.
Keywords: shear band; crack tip; plate; slant crack ... See more keywords
The effect of void defects on the shear band nucleation of metallic glasses
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DOI: 10.1016/j.intermet.2017.12.026
Abstract: Abstract Molecular dynamics simulations were employed to investigate the effect of void defect on the shear band nucleation in a Cu64Zr36 metallic glass. Unlike uniform samples, the samples with void defects can form shear bands… read more here.
Keywords: void defects; shear band; effect void; band ... See more keywords
In situ study of the shear band features of a CuZr-based bulk metallic glass composite
Sign Up to like & getrecommendations! Published in 2019 at "Intermetallics"
DOI: 10.1016/j.intermet.2019.106523
Abstract: Abstract To understand the shear banding evolution and the effect of individual shear band on deformation mechanisms of bulk metallic glass composites (BMGCs), tensile tests of CuZrAlNb BMGCs have been in situ studied. It is… read more here.
Keywords: bulk metallic; shear band; metallic glass; shear bands ... See more keywords
Shear band propagation and plastic softening of metallic glass under cyclic compression
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2016.11.039
Abstract: Abstract Shear bands play dominant roles in fatigue damage and fracture of metallic glasses (MGs). In order to explore the effect of cyclic loading on the shear banding behavior, interrupted cyclic compression-compression experiments combined with… read more here.
Keywords: propagation; compression; shear band; cyclic compression ... See more keywords
New evidences for understanding the serrated flow and shear band behavior in nanoindentation of metallic glasses
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2020.157587
Abstract: Abstract Nanoindentation of a Zr-based metallic glass was performed under various loading rates by using a cube-corner indenter. Experimental results showed that increasing the loading rate from 2 to 20 mN/s, the size of serrated flow… read more here.
Keywords: shear band; serrated flow; band; evidences understanding ... See more keywords
Failure feature and characterization of material of shear band in cutting Inconel718
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DOI: 10.1016/j.jmapro.2019.06.016
Abstract: Abstract Inconel718 is nickel-based alloy and is also a multi-component complex alloy. There exist complex cutting deformation and serrated chip in machining Inconel718, which have been the focus concern of academia and business. In this… read more here.
Keywords: stress triaxiality; shear band; chip; fracture ... See more keywords
The dynamics of a shear band
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DOI: 10.1016/j.jmps.2017.12.004
Abstract: Abstract A shear band of finite length, formed inside a ductile material at a certain stage of a continued homogeneous strain, provides a dynamic perturbation to an incident wave field, which strongly influences the dynamics… read more here.
Keywords: band; dynamics shear; shear band; mechanics ... See more keywords